Truck side frame.



2 SHBETSFSHEET l.

Patented July 21, 1914.

P. J. HOWARD.

TRUCK SIDE FRAME.

APPLIOATION HLED- APR. 29, 1913.

ell-M P. J. HOWARD.

TRUCK SIDE FRAME.

APPLICATION FILED APB..29, 1913.

' 1,104,672, Patented July 21, 1914,

2 SHEETS-SEEBT 2.

@wi/Mmes 5 wu@ W60@ UNITED STATES PATENT OFFICE. PLINY J. HowAimor CLEVELAND, omo, AssrsNoR 'ro THE NATIONAL MALLEABLE CASTINGS COMPANY, or CLEVELAND, oHIo.

TRUCK SIDE FRAME.

Specification of Letters Patent."

To all 'whom it may concern."4

Be it kno-wn that I, PLINY HowARD, a citizen of the United States, residlng at Cleveland, Cuyahoga county, Ohio, have invented new and 'useful Improvements in Truck Side Frames,.of which the following is a specification, reference being had to the accompanying drawings, forming lpart of this specification, in' which--` i Figure l is an elevation of my improved side frame; Fig. is a -section on lines II- II of Fig. 1; Fig. 3 is a section jon lines III-III of Fig.' 1; Fi 4 isa detail of a i modified form of-one o the bearin blocks;

Fig. 5 is a section on lines V-V o Fig. 4;`

l. Fig. 6 is an elevation of va modificationy of my invention; and, Fig. 7 is a section-pv on lines VII-VII of Fig.

My invention relates to truck side frames and is specifically directed to providing bearings or guides for the -bolster' window which are detachable and against which the truck bolster is ydesigned to bear. My improved bearings protect the columns at the sides of the bolster window from wear, and while in service they are securely 'attached to the Icolumns they can be readily removed and replaced when worn.

Referring to the drawings: the numeral` 2 indica-tesa truck side frame, preferably of integral construction, having the usual tension member 3, the compression member 4 land the columns 5.

The numeral 6 indicates the bolster opening or window, and 7 is the bolster having column guides 8 which secure the bolster'tov the side frame and prevent 'endwise movement of the bolster. The channel 9 is bolted to the tension member?, at the bottom of the window opening 6 and connects the vframe 2 with the corresponding `frame at the opposite side of the truck. J

Bolster bearing blocks 10 are provlded to prevent wear by the bolster upon the ,columns 5, and are adapted to be securedl to the upper portions of the columns 5 by rearwardly-projecting lugs 11 which it into corresponding apertures 12 1n the frame "2 and'extend into the` recesses 13. The keysk 14 are adapted to be insertedl into the slots 15 in the lug 11, and bear on the rear` faces of the columns 5 and on the rear sldes of the -slots 15. To provide for drawing the blocks 10 tightly back a ainst the columns, the keys 14 are made o wedge shape and have their rear facesinclined to correspond to the incline of theI rear sides -of the slots 15. The keys 14'each have a split end and are held in wedging position by the spreadlng or bending of these split ends, as is shown in Fig. 2.

s In Figs. l, 2 and 3 I have shown the bolster opening of such cross-sectionthat thev bolster can be inserted into the lower porv tion of the window in a horizontal position and then raised without tipping between the blocks 10, in which position it will be held by the column guides 8 which bear against the side face of the blocks 10. The blocks.

10 which have flanges 16 extending about Patented July 21, 1914. Applicationled April 29, 1913. Serial No. 764,299.

the sides ofthe columns 5, take all of the wear occasioned on the frame by the bolster, and adequately protect the side frames. When it is desired to remove the bearing blocks because of wear, the bolster is dropped down into the lower portion of the window,

the keys 14 are withdrawn and the blocks 11 are then free for removal. Y

In Figs. 4 and 5 I show a modified form of bolster bearing block 10', -in which the lug 11 is made separate in the form of a headed bolt. The head 17 of the bolt or lug 11 lits in a recess18 in the'bearing face of the block. The slots in the bolts 11 preferably haveN their rear faces inclined corresponding to the incline ofl the wedge keys so that as keys are driven in they will draw back the boltsl tig 18 of the blocks and will thus hold the blocks securely against the columns.

l In the modificationshown in Figs. 6 and 7, the blocks 102 lare secured in recessesl 19 in the upper portionof the columns, andthe lower faces of the blocks are supported on shoulders 20 formed in the columns by the lower edges of the recesses 19. The blocks 102 are lsecured to the columns by the lug 112 and keys 142 in the manner described above. In this modification the bolster window is of such size that the bolster may be lnserted throughv the recessed upperportion of the window and"dropped into the lower portion of the window. After putting in place the blocks 112 the bolster may then be raised toits normal position between the blocks 102.

AIt ,is obvious that various changes may be made in the constructions which Ihave shown and described herein without departing from my invention.

What I claim is: 1. In a truck side frame having an opening therein for a bolster, bearing blocks tor the bolster in the upper part ot' said open-- ing, means for attaching the bearing blocks to the side Jframe comprising a Wedge Cooperating with a pin carried on each block and with a portion of the side frame, the said Wedge being adaptedl to be inserted into registering apertures fin the side trame and pin and to draw the bearing block tightly against the face of the bolster Opelllllg.

Q. In a truck lside ranie having an opening therein tor the bolster, bearing blocks Afor the bolster in the upper part of said opening, each of said bearing blocks having a reaiwvardl)y extending dowel shaped projection, registering apertures in the traine and in the projection or'the reception .of a

wedging key, the said Wedge being adapted to draw the bearing block tightly against the face of the bolster opening and to hold it in such position.

3. In a truck side frame having therein an opening for the bolster, apertured coluinns at the side of the opening, a bearing block for the bolster in thevupper part of said opening having a Slotted rearward eX- ltension coperating'with an aperture in a sides of the opening, each column having an oii'set upper portion, bearing blocks for the bolster adapted to tit in each O said offset portions and to be held by the offset against vertical movement, each of said bearing blocks having'a slotted rearward extension4 cooperating with an opening ina column, an aperture in the'side traine, and a. Wedge shaped key adapted for insertion through said aperture and said slot-in the extension for drawing a bearing block back against a coluinn and for securing it to the side PLNY J. HOWARD. Vitnesses: Y*

f HARRY E. ORB, R. L. LEHMAN.

-frame. 

